This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer modis.gsfc.nasa.gov/ (MODIS) on NASA's aqua.nasa.gov/ Aqua satellite on September 18, 2006, at 12:45 p.m. local time (16:45 UTC). Both Gordon and Helene are well-defined hurricane spirals in this image, with tightly wound central portions, complete eyewall around the storm center, and both possessing well-defined cloud-filled eyes. Hurricane Helene, however, was much larger and continuing to gather power, while the older storm Gordon was further north over cooler water and losing power. At the time of this image, according to the University of Hawaii's http://www.solar.ifa.hawaii.edu/Tropical/tropical.html Tropical Storm Information Center, Gordon had peak sustained winds of 160 kilometers per hour (100 miles per hour), making it a Category Two storm, down from its earlier Category Three status. Helene at the same had sustained winds of 185 km/hr (115 mph), making it a powerful Category Three storm. While neither hurricane was expected to cross any land in the coming days, Gordon was predicted to wane in power as it heads north and east over cooling water, while Helene will most likely continue to track westerly and arc up north, staying over warmer seas and building power slightly or at least sustaining its Category Three status.
You can also download a eoimages.gsfc.nasa.gov/images/imagerecords/17000/17390/GordonHelene.A2006261.1645.250m.kmz 250 m resolution KMZ file (11.7 MB) for use with earth.google.com/download-earth.html Google Earth.
NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of the rapidfire.sci.gsfc.nasa.gov/ MODIS Rapid Response team.
Uploaded by Greg Williamson on